Improvement in weaving brussels and other pile carpets



'Patented Aug. 22, 1871.v

UNITED S'rn'rns PATENT OFFICE,

JOHN P. BUZZELL, OF CLINTON, MASSACHUSETTS, ASSIGNOR TO BIGELOW CARPETCOMPANY, OF SAME PLACE.

IMPROVEMENT IN WEAVING BRUSSELS AND OTHER PILE CARPETS.

Specification forming'part of Letters Patent No. 118,338, dated August22, 1871.

To all whom it 'may concern:

Be it known that I, JOHN l?. BUZZELL, of Clinton, in the county ofWorcester and State of Massachusetts, have invented an Improvement linWeaving Brussels and Wilton Carpets and other Pile Fabrics; and I dohereby declare that the following, taken in connection with the drawingwhich accompanies and forms part of this specification, is a descriptionof my invention, suflicient to enable those skilled in the art topractice it.

In weaving Brussels and Wilton carpets and other pile fabrics the shedof the linen warp has always been kept open when the filling was beat upfor the under shoot, and the comminglement of the worsted yarns with thelinen threads often results in the cockling of the worsted as thefilling is beat up, causing the loose or slack worsted to be beat inwith the filling. To remedy this defect is the object of my invention,and I accomplish this object by closing, or partially closing, the linenshed after the under shoot, so as to separate the linen warp entirelyfrom the worsted in the plane of the harness-frames, the lathe beingthereby freed from the presence of the worsted yarns, thereby making amore compact or closer texture, enabling a greater strain to be put uponthe linen or ground-Warp, and preventing the worsted from being beat inwith the filling. My invention consists in this improvement in weavingBrussels carpets and similar fabrics, or in separating the warp-shedfrom the worsted yarn after the under shoot, and so that the filling isbeat up without the commin glement of the worsted yarns and the linenwarp, and in the mechanism or arrangement of mechanism by which theresult is effected.

The drawing represents such parts of the loom as may be necessary to aclear understanding of the invention. Figure 1 shows a side elevation ofthe loom. Fig. 2 is an end elevation of it. Fig. 3 is a plan of it.

a denotes the frame; b, the lathe; c, the crankshaft th at operates thelathe; d e, the cam-shafts 5l fg, the warp-harness; h, theworsted-harness or frame. The warp-harness or harness-frames f g areconnected to the inner ends of upper and lower harness-levers 'i 7c, andthe outer ends of each pair of levers 1 7e are connected by arod, l. Thetwo rods l are jointed to lifter and depresser levers m n, pivoted at o,and having pins or rolls p running in cam-grooves q of the cam-wheels rs. The worsted-frame h is raised by cams t on the camshaft d, and fallsb`y gravity. When the shed is open for the upper shoot the lowerlinenwarp threads or yarns are in the position seen at :v in the diagramA, the upper threads or yarns in the position seen at y, and the worstedyarns in the position seen at z, the worsted and the lower linen-warpyarns bein gtogether; and while they are maintained m this relativeposition the upper shoot is driven through the shed and is beaten up bythe lathe as the shed closes. Then the figure-shed is made for the wire,:and the wire is introduced and beat up by the lathe in the usualmanner. Then the shed is V"closed, and the new shed is made for theunder shoot-the worst ed yarns and the upper-warp yarns being together,the respective yarns being in the position shown at B, :v being, asbefore, the upper linenwarp yarns, y the lower linen-warp yarns, and zthe worsted yarns, the latter being with the upper yarns of the linenwarp. The under shoot is now driven in. Prior to beating the under shootup, however, the shed is closed, or nearly closed, the linen-warp yarnsy being brought into one plane, as seen at C7 and the worsted yarnsbeing in a separate plane, as seen at z, the harness-frame and the lowerwarp threads retaining their position, and the harnessframe descendingwith the upper warp threads, bringing them into the plane of the lowerthreads, and thus closing the shed, while the worsted warp retains itsposition, or remains above the plane of the lower linen warp. Ineffecting this relation ofthe worsted and linen warps, the worsted frameis held up by the cam t, the warp harness-frame f is kept down, (the pinlo of the lifter and depressenlever a being upon the concentric ange ofthe cam-wheel3) but the other harness-frame, g, having been raised (bythe cam-groove q) to produce the ground-warp shed, is depressed by theaction of the portion 'u of the cam-groove, which, acting on the pin orroll p, throws up the lever m, thereby throwing down the harness g andcarrying its warp yarns toward or into ,line with the lower warp yarns,closing or partially closing the shed, or carrying the upper yarns ofthe shed away from the worsted or gure-yarns.

Of course the detail of arrangement or operation of the mechanism may bechanged, the improvement embracing any mechanism by which l 2. Anorganization of mechanism, substantially such as herein described, bywhich the Worsted or figure-yarns are retained in position after theunder shoot of filling is introduced andv While the ground-Warp shed isclosed or separat- .ed from the Worsted or figure-yarns and the fillinoqbeat up.

l JOHN P. BUZZELL.

Witnesses FRANCIS GoULD, M. W. FROTHINGHAM.

